2. For cleaning the lens, always use lens paper only.

3. Check the various parts of the microscope before using it.

4. If the microscope goes out of order, do not try to repair it. Notify the laboratory instructor immediately.

5. Locate the object with the help of low power objective first and then with high power objective (if needed). For initial focusing, move the body tube from below upwards.

6. Never move the body tube downwards while looking through the ocular.

7. Never use coarse adjustment while looking through high power objective.

8. While focusing light on the mirror, do not allow direct sun rays to strike the mirror.

9. For natural daylight, plane mirror and for artificial light, concave mirror should be used.

10. After use, always transfer the microscope to its box.